--- title: "Group Blacklist: Create or Import" slug: "group-blacklist-create-or-import" description: "Reference for the Group Blacklist Create and Import forms in Mapp Engage: list types (clear-text, MD5, SHA-256), entry fields, and import settings." status: "update" updated: 2026-10-30T13:41:02Z published: 2026-10-30T13:41:02Z canonical: "docs.mapp.com/group-blacklist-create-or-import" --- > ## Documentation Index > Fetch the complete documentation index at: https://docs.mapp.com/llms.txt > Use this file to discover all available pages before exploring further. # Group Blacklist: Create or Import ## Overview Use this interface to create or import group-level blacklists for email addresses, mobile numbers, or domains. --- ## Create a Group Blacklist ### Navigation path 1. *Audience > Blacklists > Group Blacklist* 2. Select the target group from the drop-down. 3. Click **Create**. --- ### Settings | **Setting** | Description | | --- | --- | | **List Type** | Choose “Clear-text”, “MD5”, or “SHA-256”. With MD5 or SHA-256, only the Email field is available. | | **Email** | Enter one or more email addresses. For MD5 or SHA-256, enter the hash values instead. | | **Mobile Number** | Enter one or more mobile numbers. | | **Domain** | Enter one or more domains. | --- ### Actions | **Action** | Description | | --- | --- | | **Create** | Opens the form to add blacklist entries for the selected group. | --- ## Import a Group Blacklist ### Navigation path 1. *Audience > Blacklists > Group Blacklist* 2. Select the target group from the drop-down. 3. Click **Import**. --- ### Settings | **Setting** | Description | | --- | --- | | **File** | Select the source file to import. | | **File Type** | Select “Text”. | | **List Type** | Choose “Clear-text”, “MD5”, or “SHA-256”. With MD5 or SHA-256, the file may contain hashed email addresses only. For SHA-256, see [Add SHA-256 Hashed Entries to a Blacklist](https://docs.mapp.com/docs/en/add-sha-256-hashed-entries-to-blacklist). | | **Character Set** | Select the character encoding (for example, “UTF-8”). | | **Import Mode** | Select how entries are handled during import (for example, “Add”). | --- ### Actions | **Action** | Description | | --- | --- | | **Import** | Opens the import form to upload blacklist entries for the selected group. |